Method for producing o-chloromethyl benzoic acid chlorides
    32.
    发明授权
    Method for producing o-chloromethyl benzoic acid chlorides 失效
    邻氯甲基苯甲酸氯化物的生产方法

    公开(公告)号:US07034181B1

    公开(公告)日:2006-04-25

    申请号:US10130821

    申请日:2000-11-27

    IPC分类号: C07C51/58

    CPC分类号: C07C51/60 C07C63/10

    摘要: The invention relates to a method for producing o-chloromethyl benzoic acid chlorides of formula (I), in which R1 to R4 can be the same or different and represent hydrogen C1–C4 alkyl, halogen or trifluoromethyl, by reaction benzo condensed lactones of formula (II), in which R1 to R4 have the above-mentioned meaning, with thionyl chloride. The inventive method is characterized in that the reaction is carried out in the presence of catalytic quantities of a Lewis acid and in the presence of catalytic quantities of a phosphine derivative.

    摘要翻译: 本发明涉及一种制备式(I)的邻氯甲基苯甲酰氯的方法,其中R 1至R 4可以相同或不同,表示氢 C 1 -C 4烷基,卤素或三氟甲基,通过反应式(II)的苯并稠合内酯,其中R 1至R 4, SUP> 4 具有上述含义,与亚硫酰氯。 本发明的方法的特征在于反应在催化量的路易斯酸存在下和在催化量的膦衍生物的存在下进行。

    Preparation of an alkenylphosphonic acid derivative
    33.
    发明申请
    Preparation of an alkenylphosphonic acid derivative 审中-公开
    烯基膦酸衍生物的制备

    公开(公告)号:US20050113602A1

    公开(公告)日:2005-05-26

    申请号:US10977449

    申请日:2004-11-01

    IPC分类号: C07B61/00 C07F9/40 C07F9/22

    CPC分类号: C07F9/4015

    摘要: Process for preparing an alkenylphosphonic acid derivative by reacting a phosphonic acid derivative with an alkyne in the presence of a catalyst complex system, wherein the catalyst complex system comprises (a) nickel and (b) a phosphine having at least two trivalent phosphorus atoms and/or (c) a phosphine having one trivalent phosphorus atom and the alkyne is added only after the phosphonic acid derivative has been brought into contact with the catalyst complex system for at least one minute.

    摘要翻译: 在催化剂络合物体系存在下使膦酸衍生物与炔烃反应制备烯基膦酸衍生物的方法,其中催化剂络合物体系包含(a)镍和(b)具有至少两个三价磷原子的膦和/ 或者(c)仅在使膦酸衍生物与催化剂络合物体系接触至少1分钟后才加入具有一个三价磷原子的膦和炔烃。

    Preparation of alkynediols
    36.
    发明授权
    Preparation of alkynediols 失效
    炔二醇的制备

    公开(公告)号:US06369282B1

    公开(公告)日:2002-04-09

    申请号:US09577127

    申请日:2000-05-24

    IPC分类号: C07C3118

    摘要: The process for preparing alkynediols of the formula (I) R1R2C(OH)—C≡C—C(OH)R1R2  (I) where R1, R2 are each independently H, or a C1-20-hydrocarbon radical which may be substituted by one or more C1-6-alkyls and/or be interrupted by nonadjacent heteroatoms and/or contain C—C double or triple bonds, by reacting compounds of the formula (II) R1—C(═O)—R2  (II) with acetylene in a polar aprotic solvent is carried out in the presence of basic alkali metal salts as catalysts.

    摘要翻译: 制备式(I)的炔二醇的方法,其中R 1,R 2各自独立地为H,或可被一个或多个C 1-6 - 烷基取代和/或被不相邻的杂原子中断的C 1-20烃基和/ 或含有CC双键或三键,通过使式(II)化合物与极性非质子溶剂中的乙炔反应,在碱性碱金属盐作为催化剂的存在下进行。

    Method for chlorinating ketones
    38.
    发明授权
    Method for chlorinating ketones 失效
    氯化酮的方法

    公开(公告)号:US06337425B1

    公开(公告)日:2002-01-08

    申请号:US09646186

    申请日:2000-09-14

    IPC分类号: C07C1702

    摘要: In a process for chlorinating ketones which, apart from the carbonyl group, are inert in respect of triarylphosphine dichlorides, except for cyclopropyl methyl ketone, in which the ketones are reacted with a chlorinating agent in the presence of triarylphosphine oxides, the amount of triarylphosphine oxide is from 0.1 to 10 mol %, based on the amount of ketone. The ketones preferably have a least one CH-acid proton in the &agr; position to the carbonyl group.

    摘要翻译: 在氯化酮的过程中,除了在三芳基氧化膦存在下酮与氯化剂反应的环丙基甲基酮以外,除了羰基外,它们是三芳基膦二氯化物是惰性的,三芳基氧化膦 基于酮的量为0.1〜10摩尔%。 酮优选在羰基的α位置具有至少一个CH-酸质子。

    Method for producing alkyne diols
    39.
    发明授权
    Method for producing alkyne diols 失效
    炔二醇的制备方法

    公开(公告)号:US06297407B1

    公开(公告)日:2001-10-02

    申请号:US09744437

    申请日:2001-01-24

    IPC分类号: C07C3118

    摘要: The invention relates to a method for producing alkyne diols by reacting ketones with acetylenic hydrocarbons in an organic solvent in the presence of a base which contains potassium alcoholates of primary and/or secondary alcohols. The alkyne diols are produced while forming adducts which precipitate out of the reaction mixture and which are comprised of alkyne monoalcohols and/or alkyne diols and a base. The stoichiometries of the reaction partners are selected such that gelatinous adducts are formed which comprise a spherical surface, whereby the reaction mixture remains agitable during the entire reaction.

    摘要翻译: 本发明涉及一种在含有伯醇和/或仲醇的醇钾的碱存在下,通过酮与炔烃在有机溶剂中反应制备炔烃的方法。 产生炔二醇,同时形成从反应混合物中沉淀的加合物,其由炔一醇和/或炔二醇和碱组成。 选择反应伴侣的化学计量,使得形成包含球形表面的凝胶状加合物,由此在整个反应期间反应混合物保持敏感。